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Stretch composites and methods of making the composites

  • US 9,404,215 B2
  • Filed: 06/07/2013
  • Issued: 08/02/2016
  • Est. Priority Date: 11/05/2001
  • Status: Expired due to Term
First Claim
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1. A stretch composite comprising:

  • an extensible first substrate having one or more first thermoplastic elastomeric members disposed on at least a portion of the substrate to form a first elasticized region,wherein the first thermoplastic elastomeric member comprises a thermoplastic elastomer and a phase change solvent having the general formula;


    R′

    -Ly-(Q-Lx)n-1-Q-Ly-R;





    (I)
    R′

    -Ly-(Q-Lx)n-R;





    (II)
    R′

    -(Q-Lx)n-R;





    (III)
    R′

    -(Q-Lx)n-1-Q-Ly-R;





    (IV)
    R′

    -(Q-Lx)n-1-Q-R;

    or 



    (V)a mixture thereof;

    wherein Q is a para-ring substituted difunctional aromatic moiety, and wherein the substitutions are in the 1,4 positions;

    L is CH2;

    R and R′

    are the same or different and are independently selected from H, CH3, COOH, CONHR1, CONR1R2, NHR3, NR3R4, hydroxy, or C1-C30 alkoxy;

    wherein R1, R2, R3 and R4 are the same or different and are independently selected from H or linear or branched alkyl from C1-C30;

    x is an integer from 1 to 30;

    y is an integer from 1 to 30; and

    n is an integer from 1 to 7;

    wherein the phase change solvent has a phase change in a temperature range from 40°

    C. to about 250°

    C.; and

    wherein the first thermoplastic elastomeric member has an average width greater than about 0.2 mm.

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